HEVAE Instream Value NSW

Published by Spatial Services (DCS)

WMSARCGIS REST SERVICE

Summary

NSW aquatic ecosystems data visualised on an interactive map.

Description

Export Data NSW Department of Climate Change, Energy, Environment and Water (DCCEEW Water) has adopted the Guidelines for Identifying High Ecological Value Aquatic Ecosystems (HEVAE) framework developed by the Australian Commonwealth Government. In the current assessment for NSW, the HEVAE consists of four key criteria which include diversity, distinctiveness, naturalness and vital habitat. Therefore, the HEVAE instream value layer is a combination of four individual criterion layers. The final or overall HEVAE score is determined for each River Style® reach. This is calculated by adding together the final scores for each criterion (Naturalness, Diversity, Distinctiveness and Vital Habitat). This score is then standardised by dividing by the maximum combined HEVAE score for a whole catchment's river reaches to provide an even spread of score outcomes between 0 (lowest) and 1 (highest). The distinctiveness value criteria of HEVAE were updated in 2018 by including the predicted threatened fish species distribution data (MaxEnt modelled data) provided by DPI Fisheries. The final or overall HEVAE scores where then recalculated after this process. Previous SEED service moved from 10.7 to 11. 1 Portal. Waiting for Metadata from DPIE. Metadata  Portal Metadata Information Content Title HEVAE Instream Value NSW Content Type Hosted Feature Layer Description NSW Department of Climate Change, Energy, Environment and Water (DCCEEW Water) has adopted the Guidelines of Identifying High Ecological Value Aquatic Ecosystems (HEVAE) framework developed by the Australian Commonwealth Government.  Initial Publication Date 28/08/2024 Data Currency 28/08/2024 Data Update Frequency  API Content Source  API File Type Imagery Layer Attribution Data Theme, Classification or Relationship to other Datasets Accuracy Spatial Reference System (dataset) GDA94 Spatial Reference System (web service) Other WGS84 Equivalent To GDA94 Spatial Extent Content Lineage Data Classification Unclassified Data Access Policy Open Data Quality Terms and Conditions Creative Common Standard and Specification Data Custodian NSW Department of Climate Change, Energy, Environment and Water Point of Contact NSW Department of Climate Change, Energy, Environment and Water Data Aggregator Data Distributor Additional Supporting Information TRIM Number

Resources

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WMS file 1

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ARCGIS REST SERVICE file 2

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Metadata

Licence
License Not Specified
Last Updated
10 Mar 2026
Created
24 Oct 2025
Source Portal
Nsw

Dublin Core Metadata

Publisher
Spatial Services (DCS)
Creator
Spatial Services (DCS)
Type
Dataset
Language
en
Rights
License Not Specified
Spatial Coverage
New South Wales, Australia
Temporal Coverage
24 Oct 2025 – 10 Mar 2026
Related Resources
https://spatialportalarcgis.dpie.nsw.gov.au/sarcgis/services/Water/HEVAE_Instream_Value_NSW/MapServer/WMSServer?request=GetCapabilities&service=WMS, https://spatialportalarcgis.dpie.nsw.gov.au/sarcgis/rest/services/Water/HEVAE_Instream_Value_NSW/MapServer
Subjects
Water

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